7x+4+4x=81

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Solution for 7x+4+4x=81 equation:


Simplifying
7x + 4 + 4x = 81

Reorder the terms:
4 + 7x + 4x = 81

Combine like terms: 7x + 4x = 11x
4 + 11x = 81

Solving
4 + 11x = 81

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-4' to each side of the equation.
4 + -4 + 11x = 81 + -4

Combine like terms: 4 + -4 = 0
0 + 11x = 81 + -4
11x = 81 + -4

Combine like terms: 81 + -4 = 77
11x = 77

Divide each side by '11'.
x = 7

Simplifying
x = 7

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